just a implementation of the interface with a constructor that accepts the
value and the label
public class SimpleOptionModel<T> implements OptionModel
{
private final T value;
private final String label;
public SimpleOptionModel(T value, String label)
{
this.label = label;
this.value = value;
}
..........
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Andy Pahne <andy.pa...@gmail.com>
28.01.2010 15:34
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Re: Easy Way to create a select model?
Hi Kristian.
Thanks for the code. It does not compile right now. Do you have the
source for SimpleOptionModel<T> also available?
Thnak you,
Andy
Am 28.01.2010 15:17, schrieb Kristian Marinkovic:
> something like this:
>
> usage:
> SelectModel m = SelectModelUtils.toBeanSelectModel(someList, "name",
"id"
> );
>
> explanation:
> use the value of the property "name" as label, the value of the "id"
> property as value;
> assuming that the bean within the list contains this properties
> (RuntimeException otherwise)
>
> code:
> public class SelectModelUtils
> {
> private static final BeanUtilsBean beanUtil = BeanUtilsBean.
> getInstance();
>
> /**
> * Converts a list of beans to a {...@link SelectModel} using the
values
> of labelField and valueField.
> */
> public static<E> SelectModel toBeanSelectModel(List<E>
beanList,
> String labelField, String valueField)
> {
> return new
SimpleSelectModel(toBeanOptionModels(beanList,
> labelField, valueField));
> }
>
> public static<E> SelectModel toBeanSelectModel(List<E> input,
> String labelField)
> {
> return toBeanSelectModel(input, labelField, null);
> }
>
> /**
> * Converts a list of beans to a list of {...@link OptionModel}s using
> getters for label and value.
> */
> private static<E> List<OptionModel> toBeanOptionModels(List<E>
> beanList, String labelField, String valueField)
> {
> Defense.notNull(beanList, "beanList");
>
> List<OptionModel> result = newList();
>
> for (E bean : beanList)
> result.add(toBeanOptionModel(bean, labelField,
valueField));
>
> return result;
> }
>
> /**
> * Converts an bean to an {...@link OptionModel} using getters for
label
> and value.
> */
> private static<E> OptionModel toBeanOptionModel(E bean, String
> labelField, String valueField)
> {
> if(bean != null) try
> {
> String label = beanUtil.getProperty(bean,
> labelField);
> Object value = valueField == null ? bean :
> beanUtil.getPropertyUtils().getProperty(bean, valueField);
> return new SimpleOptionModel<Object>(value,
> label);
> }
> catch (Exception e)
> {
> throw new RuntimeException(e);
> }
> return new SimpleOptionModel<E>(bean);
> }
> }
>
>
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